After upgrading iPhone to 12.2 Made a 2-way call with Chrome on PC: There are some chances that the remote party cannot hear from the IOS 12.2 Chances are it is more likely to reproduce on iPhone 6s (12.2) (Say around 50%), less likely to reproduce on iPhone 7 or iPhone X (say around 5%) Are you aware of any part related to that? (I haven't try much on beta)
*** This bug has been marked as a duplicate of bug 197049 ***